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-rw-r--r--src/arch/i386/lib/copy_and_run.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/arch/i386/lib/copy_and_run.c b/src/arch/i386/lib/copy_and_run.c
new file mode 100644
index 0000000000..bf8d592f54
--- /dev/null
+++ b/src/arch/i386/lib/copy_and_run.c
@@ -0,0 +1,54 @@
+/* by yhlu 6.2005
+ moved from nrv2v.c and some lines from crt0.S
+ 2006/05/02 - stepan: move nrv2b to an extra file.
+*/
+
+#include <console/console.h>
+#include <stdint.h>
+#include <string.h>
+
+#if CONFIG_COMPRESS
+#define ENDIAN 0
+#define BITSIZE 32
+#include "../lib/nrv2b.c"
+#endif
+
+void copy_and_run_core(u8 *src, u8 *dst, unsigned long ilen, unsigned ebp)
+{
+ unsigned long olen;
+
+#if CONFIG_USE_INIT
+ printk_spew("src=%08x\r\n",src);
+ printk_spew("dst=%08x\r\n",dst);
+#else
+ print_spew("src="); print_spew_hex32((uint32_t)src); print_spew("\r\n");
+ print_spew("dst="); print_spew_hex32((uint32_t)dst); print_spew("\r\n");
+#endif
+
+#if !CONFIG_COMPRESS
+ print_debug("Copying image to RAM.\r\n");
+ memcpy(src, dst, ilen);
+ olen = ilen;
+#else
+ print_debug("Uncompressing image to RAM.\r\n");
+// dump_mem(src, src+0x100);
+ olen = unrv2b(src, dst, &ilen);
+#endif
+
+// dump_mem(dst, dst+0x100);
+#if CONFIG_USE_INIT
+ printk_spew("image length = %08x\r\n", olen);
+#else
+ print_spew("image length = "); print_spew_hex32(olen); print_spew("\r\n");
+#endif
+ print_debug("Jumping to image.\r\n");
+
+ __asm__ volatile (
+ "movl %0, %%ebp\n\t"
+ "cli\n\t"
+ "leal _iseg, %%edi\n\t"
+ "jmp *%%edi\n\t"
+ :: "a"(ebp)
+ );
+
+}